This measuring set contains four high quality instruments-a 0-25 x 0.01 MM micrometer caliper, a 90 degree knife edge square, a 150 x 0.05 MM vernier caliper, and a 150 MM steel ruler. All of these are housed in a sturdy plastic storage case.

Accurate, non-rolling hexagonal masses are made of steel, and feature a durable black oxidized finish. Available in both customary and metric sizes.

Durable, lightweight plastic instruments, designed for whiteboards/chalkboards. Triangles, protractor, and ruler are made of white polystyrene and feature handles for ease of use. Compass is made of clear acrylic, and accomodates most dry erase and magic markers. Triangle, 45 degree, 23" base, 16" sides.

This versatile tape measure is perfect for a wide variety of applications. The bright yellow steel tape retracts with a simple push of a button. It also features a high impact plastic case with a belt clip and loop handle. The tape is marked in both English and metric.

This versatile spring scale can be used to measure forces using push or pull functions, or to weigh a suspended object from the large hook. Includes a zero adjustment screw and a metal suspension ring. Available in six color-coded sizes.

Glass thermometer with red Toluene solution is mounted on a plastic backing card. Range is -40° to +50°C .

Economical stainless steel Vernier calipers with 125mm/5 inch capacity. Features inside and outside jaws, full length depth gauge, friction ruler and sliding lock for gauging. Graduated in millimeters and 1/16".

These spring scales feature a clear plastic tube design, and are color-coded. A zero adjustment screw is provided at the top. Overall length approx.7".

These foam calorimeter cups have excellent insulating properties so you can investigate thermal energy with minimal loss to the environment. The lids have holes for inserting a thermometer or temperature probe. Outside Dimensions Height: 4.25” Diameter: 4” Inner container: Height: 4” Diameter 4”…

Sturdy economical scale for general use in the lab. It features a round plastic weighing platform. Capacity is 5 kg, or 11 lbs.

The clear plastic 6" / 15cm ruler is scaled in 1mm increments on one side.

This 25 foot / 7.5 meter metal blade tape measure is 1" wide and is scaled in 1/16" increments on one side and 1mm increments on the other side. Features an easy to read lockable, retractable yellow blade and high-impact ABS case.

GSC International N-00002 DC Ammeter Digital with Connectors Range 3A,1mA. The 3A, 1mA Digital DC Ammeter with high accuracy is small and light enough to connect with any circuit. A 3 volt lithium battery is included. Two alligator clips are directly connected with the meter’s main body for…

Demonstrate Torricelli’s theorem to show the relationship between water pressure and depth. This clear acrylic cylinder, 19-5/16” high, includes three vertically aligned spouting nozzles positioned 4-3/4” apart. Each spouting nozzle also includes a stopper so pressure at each…

Use this convenient set to perform various pulley demonstrations. The durable 20cm x 15cm base is fitted with a capstan and a 61cm tall aluminum support rod. Also includes a 20cm crossbar with clamp.  Includes activity guide. Contents Wooden base with capstan, hook and rod…

Includes a 50g aluminum hanger and 12 aluminum weights, 9 x 20g, 1 x 10g, and 2 x 5g.

Durable, liquid-filled clear magnetic compass is housed in a black plastic rotatable bezel. Graduated in 5° increments. Outer diameter of bezel is 45mm. Outer diameter of clear compass is 35mm. Includes a lanyard.

The digital force meter is ideal for addition and resolution of forces, as well as for experiments involving action-reaction laws and other physical phenomena. With a wide range of 2, 5, 10 and 20 Newtons, it virtually replaces four types of spring balances, making it perfect for a variety of…

Balls sold individually and in a variety of sets. Choose from aluminum, brass, copper, cork, glass, lead, steel, wood, and zinc. Sizes include 19mm and 25mm. Pick from one of the following styles: drilled center hole, solid, and with hooks. Ball sets include: 42003-19: 19mm diameter with…

Slotted weight set with hanger & case, brass. Includes 1x50g, 9x20g, 1x10g, 2x5g, hanger

Weights are made of brass, with nickel plated surfaces. All weights are carefully tested and calibrated. Analytical Weight Box contains a total of 9 weights from 1 to 100 grams, in polished wooden box, with fractional weights, rider and forceps.

For use with slotted weights. Available in aluminum or brass. Each weighs 50g. Stem length is 16 CM for aluminum hanger, 11.5 CM for brass hanger.

Accurate, non-rolling hexagonal masses are made of steel, and feature a durable black oxidized finish. Available in both customary and metric sizes.

Ammeters are used to measure the current flowing through a circuit. Current is measured in amperes, which is denoted by A on our meters. Our meters are accurate to +/- 2.5% and have banana jack style binding posts. This AC/DC ammeter can measure a range of 0A to 3A.

The liquid convection apparatus is made from Borosilicate Glass and is bent into a rectangle with a filling funnel. To show the convection of heat in a liquid, simply fill it with a colored liquid and place a heat source at one of the bottom corners. Glass tube is 20 mm outer diameter bent into…

Mounted on a plastic base; comes with a ring for easy hanging. Overall diameter is 7.5". Shipping weight is 1.4 lbs.

Featured displays of this electronic alarm stopwatch include time (hours-minutes-seconds, with 12 or 24 hour mode option), calendar, 24-hour stopwatch, alarm, hourly chime, 1/100 second chronograph, split time, and total time. It is lightweight, easy to operate, ad comes complete with battery and…

This is replacement tape for the Spark Timer (TKTMR). The Spark Timer is a recording device used to measure the velocity and acceleration of a falling or moving object. It sparks at uniform intervals, leaving marks on a paper tape. The distance between the marks on the tape are used to calculate…

This micrometer is made of hardened steel for precision and durability. Its range is 0-25 MM and it has a precision rotary scale with a resolution of 0.01 MM, a ratchet thimble, and a locking lever. Instructions are included. Shipping weight: 9.5 Oz., dimensions: 6" x 4" x 1.5".

Good quality weight set contains 9 weights (1 each of 1g, 5g, 10g, 50g, and 100 g sizes, and 2 each 2 g and 20g sizes) plus a set of 1 to 500 mg fractional weights and a 5 mg rider and forceps, in a wooden storage box. Weights are made of polished stainless steel and each weight is inscribed with…

This clear plastic 12" ruler is scaled in 1/16" increments on one side and MM on the other.

These weight sets include accurate, non-rolling hexagonal masses made of steel, and feature a durable black oxidized finish. Sets are supplied in sturdy cardboard boxes. Metric Weight Set includes two each of 5g, 10g, 20g, 50g, and 200g masses,